HazMat Tool — substance information

Battery fluid, acid

HMT 15 June 2026
Reference only — HMT snapshot for inspection and audit support; not a shipping paper, placard mandate, or CVI record. Use Print / PDF below for field notes.
UN / ID
UN 2796
Hazard class
8
Packing group
II (multiple — see tabs)
ERG guide
ERG 157
Special provisions
SP A3, SP A7, SP B2, SP B15, SP IB2, SP N6, SP N34, SP T8, more…
Source
49 CFR §172 (15 June 2026)

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Battery fluid, acid

Substance Data

Source: PubChem (HSDB, 09.12.2019)

CAS-Number

7664-93-9

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 157

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard Class

8
Corrosive liquids

(4) Identification number Help

UN 2796

(5) Packing Group Help

II

(6) Labels Help

Corrosive liquids (8)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
A3
A7
B2
B15
IB2
N6
N34
T8
TP2

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions154see 49 CFR §173.154
(8B) Non-bulk202see 49 CFR §173.202
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail1 L
(9B) Cargo aircraft only30 L

(10) Vessel stowage Help

(10A) Location
(10B) Other n/a

(3) Hazard Class

8
Corrosive liquids

(4) Identification number Help

UN 2796

(5) Packing Group Help

II

(6) Labels Help

Corrosive liquids (8)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
386
A3
A7
B2
B15
IB2
N6
N34
T8
TP2

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions154see 49 CFR §173.154
(8B) Non-bulk202see 49 CFR §173.202
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail1 L
(9B) Cargo aircraft only30 L

(10) Vessel stowage Help

(10A) Location
(10B) Other

Packing group comparison

Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.

PG II PG II
1
2Battery fluid, acidSulfuric acid with not more than 51% acid
388
4UN 2796UN 2796
5IIII
688
7A3, A7, B2, B15, IB2, N6, N34, T8, TP2386, A3, A7, B2, B15, IB2, N6, N34, T8, TP2
8A154154
8B202202
8C242242
9A1 L1 L
9B30 L30 L
10ABB
10B n/a53, 58

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Prohibited Must not be loaded, transported, or stored together in the same vehicle or facility.
Permitted May be loaded, transported, or stored together.
Restricted May be loaded, transported, or stored together only with restrictions.