Desiccant is a drying agent used to lower the moisture content of air
inside a closed space, such as a Moisture Barrier Bag. Desiccant is
packaged in fractional units in order to facilitate its usage with a variety of
bag sizes. One full “unit” of packaged desiccant will absorb the following
quantities of water at equilibrium with air at 77°F (25°C): 3.00 grams @
20% rH and 6.00 grams @ 40% rH, when tested to MIL-D-3464.
In order to provide a complete moisture barrier packaging assembly,
desiccant must be inserted into the bag, prior to having the bag vacuum
sealed. The recommended amount of desiccant is dependent on the
interior surface area of the bag to be used. Figure 4 is a reference table
indicating recommended minimum amounts of desiccant that should be
used with Moisture Barrier Bags.
INTERIOR BAG
SURFACE AREA*
100 sq. in.
130 sq. in.
160 sq. in.
200 sq. in.
240 sq. in.
290 sq. in.
340 sq. in.
390 sq. in.
450 sq. in.
510 sq. in.
580 sq. in.
650 sq. in.
720 sq. in.
NUMBER OF DESICCANT UNITS
**MIH <20%
MIH <30%
MIH < 40%
1.5
2.0
2.0
2.5
3.0
4.0
4.5
5.0
5.5
6.5
7.5
8.0
9.0
1.0
1.5
1.5
2.0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
1.0
1.0
0.5
1.5
1.5
2.0
2.5
2.5
3.0
3.5
4.0
4.0
4.5
Table for recommended desiccant usage. Information taken out of EIA-583, Table 1, Page 8.
*To measure interior bag surface area, multiply length x width x 2
**MIH = Maximum Interior Humidity (%)
Desiccant paks are available from Protektive Pak in the following unit sizes and
standard packages:
48887 & 48888
48880 & 48883
Item # Unit Size
48880
1/2 unit
48883
1/2 unit
48887
1 unit
48888
1 unit
Std. Package
Pail of 550
Box of 700
Box of 450
Pail of 300
Dimensions
1.5" x 3"
1.5" x 3"
2" x 4"
2" x 4"
REACH Directive 1907/2006/CE
This material should be considered an “article” under the REACH guidelines. None
of the substances listed as “Substances of Very High Concern” (SVHC) are
intentionally added in its manufacturing.
“...it is important to take possible temperature exposure into account when shipping
electronic parts. It is particularly important to consider what happens to the interior
of a package if the environment has high humidity. If the temperature varies across
the dew point of the established interior environment of the package, condensation
may occur. The interior of a package should either contain desiccant or the air
should be evacuated from the package during the sealing process. The package
itself should have a low WVTR.” (ESD Handbook ESD TR20.20 section 5.4.3.2.2)
Desiccant paks sold by Protektive Pak meet the requirements
of MIL-D-3464.
Fill Contents:
Paper:
Activated Clay
Tyvek
Made in America
Specifications and procedures subject to change without notice.
Desiccant Pak
PROTEKTIVE PAK
13520 MONTE VISTA AVENUE, CHINO, CA 91710
PHONE (909) 627-2578, FAX (909) 363-7331
ProtektivePak.com
DRAWING
NUMBER
48881
DATE:
May
2010
© 2010 DESCO INDUSTRIES INC.
Employee Owned
Material Safety Data Sheet
May be used to comply with
OSHA’s Hazard Communication Standard,
29 CFR 1910. 1200. Standard must be
consulted for specific requirements.
NFPA Designation 704
Degree of Hazard:
4 = Extreme
3 = High
2 = Moderate
1 = Slight
0 = Insignificant
Health
(Blue)
Flammability
(Red)
0
1
0
0
Reactivity
(Yellow)
SECTION III -- PHYSICAL DATA
Appearance and Odor
Melting Point:
Solubility in Water:
Bulk Density:
Percent Volatile by Weight at 150° C:
Gray granules. No odor.
N/A
Insoluble
57-64 lbs./cu. ft.
<3.0%
Special Hazard
SECTION I -- PRODUCT IDENTIFICATION AND THE COMPANY
Product information
Trade Name and Synonyms:
Company:
Phone:
Fax:
Chemical Family:
Desi
Desco Industries Inc.
3651 Walnut Ave
Chino, CA. 91710
(909) 627-8178
(909) 627-7449
Montmorillonite Clay Mineral
Smectite Clay Mineral
Bentonite
Calcium Aliminosilicate
(Ca)x(A1
2
-xMgm)Si
4
O
10
(OH)
2
nH
2
0
Pak
®
SECTION IV -- FIRE EXPLOSION DATA
FIRE AND EXPLOSION HAZARD - Negligible fire and explosion hazard when exposed to heat
or flame by reaction with incompatible substances.
FLASH POINT - Nonflammable.
FIREFIGHTING MEDIA - Dry chemical, water spray, or foam. For larger fires, use water spray
fog or foam.
FIREFIGHTING - Nonflammable solids, liquids or gasses: Cool containers that are exposed
to flames with water from the side until well after fire is out. For massive fire in enclosed area,
use unmanned hose holder or monitor nozzles; if this is impossible, withdraw from area and
let fire burn. Withdraw immediately in case of rising sound from venting safety device or any
discoloration of the tank due to fire.
Formula:
NFPA/HMIS
Health:
Fire:
Reactivity:
Specific Hazard:
0
0
0
See Section X
SECTION V -- HEALTH HAZARD DATA
This material is normally packaged and contained in a bag. If the bag is open, the resulting
dust is classified a nuisance dust, and may cause health hazards when inhaled, ingested or in
contact with the eyes and skin. Prolonged inhalation may cause irritation to the upper respiratory
tract and/or lung damage. If large amounts are ingested, intestinal disorders may occur. Contact
with eye tissue may result in irritation.
Prolonged or repeated contact with the skin in the absence or proper hygiene may cause
irritation.
Desi Pak
®
clay may contain a small amount of crystalline silica (quartz). Inhalation of crystalline
silica in the respirable range in excess of the TLV may result in an increase in the risk of serious
respiratory disease. Avoid breathing the dust. Use NIOSH/MSHA approved respirators when the
TLV for crystalline silica may be exceeded.
FIRST AID (INHALATION)
- Remove to fresh air immediately. If breathing has stopped, give
artificial respiration. Keep affected person warm and at rest. Get medical attention immediately.
FIRST AID (INGESTION)
- If large amounts have been ingested, give emetics to cause
vomiting. Stomach siphon may be applied as well. Milk and fatty acids should be avoided. Get
medical attention immediately.
FIRST AID (EYES)
- Wash eyes immediately and carefully for 30 minutes with running water,
lifting upper and lower eyelids occasionally. Get prompt medical attention.
FIRST AID (SKIN)
- To avoid repeated or prolonged contact with this chemical, use good
hygienic practices. Wash with soap and a large amount of water. Get medical attention if
irritation or inflammation develops
SECTION II -- HAZARDOUS INGREDIENTS
Hazardous Components in the Solid Mixture
COMPONENT
Montmorillonite
Clay Mineral
CAS No.
1302-78-9
% by Weight
≥
99
<1%
Not Detectable
0.1 mg/m
3
0.1 mg/m
3
OSHA/PEL
5.0 mg/m
3
in
respirable form
ACGIH/TLV
5.0 mg/m
3
in
respirable form
Silicon dioxide
14808-60-7
(Crystalline Quartz)
Respirable Dust
INGREDIENT HAZARD STATEMENT
- This product contains less than 1% crystalline quartz
(CAS #14808-60-7), which is in a non-respirable form. The product is in granular form, and
packed in bags for use as a desiccant. Therefore, no exposure to quartz or clay dust is
anticipated under normal use of this product.
CARCINOGENICITY
NTP? No
OSHA? No
Prolonged or repeated exposure may cause lung injury. Unless otherwise noted, all values
are reported as 8-hour Time Weighted Averages (TWA’s) and total dust (particulates only). All
ACGIH TLV’s refer to the 1989-90 Standards. All OSHA PEL’s refer to 49 CFR Part 1910 Air
Contaminants: Final Rule, January 19, 1989.
SECTION VI - REACTIVITY DATA
REACTIVITY
- Is stable under normal temperatures and pressures in sealed containers.
Hazardous polymerization will not occur.
SECTION VII - SPILL OR LEAK PROCEDURES
Notify safety personnel of spills or leaks. Clean-up personnel need protection against inhalation
of dusts or fumes. Eye protection is required. Vacuuming and/or wet methods of cleanup are
preferred. Place in appropriate containers for disposal, keeping airborne particulates at a
minimum. Clay is slippery when wet.
DISPOSAL
- Consult application local, state, and federal regulations to select the method of
disposal.
The information contained herein is based upon data considered true and accurate. However,
Desco Industries makes no warranties expressed or implied, as to the accuracy or adequacy
of the information contained herein or the results to be obtained from the use thereof. This
information is offered solely for the user’s consideration, investigation and verification. Since the
use and conditions of use of this information and the material described herein are not within
the control of Desco Industries, Desco Industries assumes no responsibility for injury to the user
or third persons. The material described herein is sold only pursuant to Desco Industries Terms
and Conditions of Sales, including those limiting warranties and remedies contained therein. It is
also the responsibility of the user to determine whether any use of the data and information is in
accordance with applicable federal, state or local laws and regulations.
SECTION VIII - SPECIAL PROTECTION INFORMATION
RESPIRATORY PROTECTION
- Provide a NIOSH/MSHA jointly approved respirator in the
absence of proper environmental control. Contact your safety equipment supplier for proper
mask type.
VENTILATION
- Provide general and/or local exhaust ventilation to keep exposure below the
TLV. Ventilation used must be designed to prevent spots of dust accumulation or recycling of
dusts.
PROTECTIVE CLOTHING
- Wear protective clothing, including long sleeves and gloves, to
prevent repeated or prolonged skin contact.
EYE PROTECTION
- Chemical splash goggles designed in compliance with OSHA regulations
are recommended. Consult your safety equipment supplier.
RoHS Compliance Statement
None of the following materials are
intentionally added in manufacturing this
product: lead, mercury, cadmium, hexavalent
chromium, polybrominated biphenyls (PBB)
or polybrominated diphenyl ethers (PBDE) as
outlined in the Directive 2002/95/EC Article
4.1. See Desco Industries Inc. letter on-line at
ProtektivePak.com.
SECTION IX - STORAGE PRECAUTIONS
Store in a dry, well-ventilated place, below 115 degrees F., away from a heat source. Keep in
tightly closed container. Protect container from physical damage. Always reseal container and
protective moisture barrier liner after use.
SECTION X
HMIS (Hazardous Materials Identification System) for this product is as follows:
Health Hazard
Flammability
Reactivity
Personal Protection
0
0
0
HMIS assigns choice of personal protective
equipment to the customer, as the raw
material supplier is unfamiliar with the
condition of use.
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